My beloved 24-105 f/4.0L is the lens most showing it's age right now. I have to keep a constant grip on the zoom ring. If I have it pointed upward, it "falls" to 24mm, if it's pointed down, it "self-zooms" to 105mm. However, image quality is still great, and it gets used pretty much daily.

Take a rubber band from a head of broccoli, place it on the lens at the joint of the zoom ring and the lens body..... it gives extra friction and that stops the lens creep.

The sigma 120-300 sport is a really nice range on a crop body, here's a couple shot that I just took with and without a 2x promaster on a 70d, wireless to tablet and up to this site, very convienant also

Sigma is going from Stygma to Serious. Every photographer is watching them now.

I haven't pulled the trigger on any of their gear yet, but i am certainly happy about what they are doing. It seems only a matter of time before I own one or two Sigma lenses.

The first one will probably be the 18-35 f/1.8 . I am hoping to get a C100 if the prices ease up a bit more, and this lens is the only one of it's kind, it should be spectacular on the C100.

I must confess that after the price drop, I opted for the Canon 35 f/2 IS over the Sigma 35 1.4, because IS is great for hand-held video, and it is half the size and weight of the Sigma. I love the Canon 35! I probably would have loved the sigma too, but I wanted the light weight and IS. The IQ on the Canon is great too!

My beloved 24-105 f/4.0L is the lens most showing it's age right now. I have to keep a constant grip on the zoom ring. If I have it pointed upward, it "falls" to 24mm, if it's pointed down, it "self-zooms" to 105mm. However, image quality is still great, and it gets used pretty much daily.

Take a rubber band from a head of broccoli, place it on the lens at the joint of the zoom ring and the lens body..... it gives extra friction and that stops the lens creep.

I hate broccoli! While the rubber band idea is cute, they just don't make them like they used to. They have a tendency to rot and fall apart and stick to stuff. You want a silicone band. The type that are to be worn on the wrist will do. Else, you can do what I did and fork out a little cash:

My beloved 24-105 f/4.0L is the lens most showing it's age right now. I have to keep a constant grip on the zoom ring. If I have it pointed upward, it "falls" to 24mm, if it's pointed down, it "self-zooms" to 105mm. However, image quality is still great, and it gets used pretty much daily.

Take a rubber band from a head of broccoli, place it on the lens at the joint of the zoom ring and the lens body..... it gives extra friction and that stops the lens creep.

Hmmm. . .

I'm a dedicated improviser, but that's one I didn't think of. Props also to Brad-man for the silicone band idea. My wife had one of those laying around from a fund raiser at her work some months back. I worked it into place on the lens and no more "auto-zoom." Makes it a little stiff to turn by hand, but it beats the alternative.

All this reminds me of the vacuum cleaner drive belt some of us used to augment the skinny, undernourished focus ring on the original Nikkor 180 2.8 AF lens back in the late 80's. (Yes, at one time I had an inappropriate relationship with a pair of FM2's. I was young and I needed the money. . .)